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Finding the Fourth Proportional to 9,302.60, 13,953.90 and 8,589.80

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Solution

The fourth proportional to 9,302.60, 13,953.90 and 8,589.80 is: 12,884.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,302.60 : 13,953.90 = 8,589.80 : x
  2. Step 2: Convert to fraction form
    9,302.60/13,953.90 = 8,589.80/x
  3. Step 3: Cross multiply
    9,302.60x = 13,953.90 × 8,589.80
  4. Step 4: Simplify right side
    9,302.60x = 119,861,210.22
  5. Step 5: Solve for x
    x = 119,861,210.22/9,302.60
  6. Step 6: Final answer
    x = 12,884.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.